C# - Check If All Checkbox Is Selected = False
Jan 4, 2011foreach(Listitem item in CheckboxList1.Items)
{
if(item.Selected == true)
{
return true;
}
}
return false; Is there a better way to check if all checkbox selected is false?
Similar Messages:
Check If A Checkbox Is Checked - Convert Tobool Fails Since Its Lower Case "false"?
Aug 16, 2010convert.toboolean(request.form["mycheckbox"]
but since the value is 'false', it doesn't seem to cast to boolean. What should I do? I don't like checking for == "false" and then converting to boolean. is there a cleaner way? Update All I am doing is:
if (Convert.ToBoolean(request.Form["somecheckbox"]))
{
}
Forms Data Controls :: Access A Servercontrol (checkbox ) From Jscript And Check If It Was Selected?
Jan 25, 2011I have a gridview that contains check box in first column for each row. I also have a check box outside the grid view called >>>>
<asp:CheckBox ID="chkSelectAll" runat="server" Text="Select All" AutoPostBack="true"
OnCheckedChanged="chkSelectAll_CheckedChanged" />
I either can select more than one checkboxes from gridview then click on a button to get the number of checkboxes selected OR I click on SelectAll checkbox ( which is outside the gridview ) which check all the checkboxes in the gridview and give me the number of checkedboxes. When I select inidividual checkboxes inside the gridview, th e count of number of checkboxes is correct ( displayed in a lable ) However;
When I click "SelectAll" check box, it give me total of all checkboxes chekced in the
gridview + 1 ( extra ) I am trying to get rid of this extra one by checking if this "Allcheckbox" is selected to so I subtract one from the total count .. like this
// java code ... code not shown does capture the total count into c variable
varAllChecked = document.getElementById('chkSelectAll');
if (varAllChecked.checked== true)
litCount.innerText = c - 1;
else
litCount.innerText = c;
Forms Data Controls :: Checkbox.Checked = False, Even Though Checkbox In The Gridview Is Checked?
May 3, 2010I have a GridView that I was previously populating via an ObjectDataSource, and this code was working perfectly (ie, when the checkbox was checked Checkbox.Checked = true):
CODE BEHIND:
[Code]....
[Code]....
Forms Data Controls :: GridView : Checkbox : Checked Value Is Still False After Checked The Checkbox?
Mar 11, 2011<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkRDR1" runat="server"/>
</ItemTemplate>
</asp:TemplateField>
=========================================================================================
Dim checkbox As CheckBox = CType(row.FindControl("chkRDR1"), CheckBox)
Getting False Value Of Checkbox
Jan 19, 2010public CheckBox[] cb = null;
int z=0;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
cb = new CheckBox[count - k];
//Database code.........
while (dr.Read())//read data from access database
{
cb[z] = new CheckBox();
cb[z].Text = dr["Member_Name"].ToString();
Panel2.Controls.Add(cb[z]);
Panel2.Controls.Add(new LiteralControl("</br>"));
z = z + 1;
}
}
}
protected void Button6_Click(object sender, EventArgs e)
{
for (int x = 0; x < cb.Length; x++)//ERROR IS HERE:Object reference not set to an instance of an object.
{
if (cb[x].Checked == true)//EVERY TIME I GOT FALSE VALUE
{
//processing check boxes
}
}
}
C# - Get False Value Of Checkbox
Jan 19, 2010public static CheckBox[] cb = null;
int z=0;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
cb = new CheckBox[count - k];
//Database code.........
while (dr.Read())//read data from access database
{
cb[z] = new CheckBox();
cb[z].Text = dr["Member_Name"].ToString();
Panel2.Controls.Add(cb[z]);
Panel2.Controls.Add(new LiteralControl("</br>"));
z = z + 1;
}
}
}
protected void Button6_Click(object sender, EventArgs e)
{
for (int x = 0; x < cb.Length; x++)//ERROR IS HERE:Object reference not set to an instance of an object.
{
if (cb[x].Checked == true)
{
//processing check boxes
}
}
}
JQuery Incrementally Count Selected Checkbox And Deselected Checkbox?
Jan 27, 2010I have an ASP.NET web form that has 6 checkbox. 1 checkbox is to call a Function to select all checkbox and show the message "You have selected" 6 "items" (in this case, 6 checkbox). If a user doesn't select the Select All checkbox, they can select or deselect other checkbox individually and the message will be "You have selected" # "items" I'm trying to do this in jQuery, but it's not working yet. Here's the script:
[code]....
The CSS class CheckBoxClass is not with the HTML input, that's why I'm looking for checkbox Id instead of checkbox class.
Web Forms :: How Can Validate The Checkbox Is True Or False
Feb 5, 2010how can validate the checkbox is true or false...
View 6 RepliesData Controls :: Check Uncheck All CheckBox In Child (Nested) GridView When Parent GridView CheckBox Is Checked Unchecked?
May 7, 2015when i checked the checkbox in parent gridview, all checkbox in child gridview will be checked.
how can i select the checkbox of child gridview checkbox in the when i select the checkbox from the parent gridview?
code behind
protected void OnCheckedChanged(object sender, EventArgs e)
{
[Code].....
Forms Data Controls :: Gridview With Checkbox.checked Always False
Jan 13, 2010I a using Gridview bind to a dataset. For this example, I am only setting up two columns.
1. Edit button
2. A template field that will display "No" and in Edit mode will show a checkbox.
When I run this code... the page is displayed... I click on the edit button... the row changes to edit mode and I CLICK the checkbox (can see a it checked).Then click on "Update" Button... which takes me to GridView1_RowUpdating event. If I check the status of the "box"... it's checked status is ALWAYS false Why?
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="Member_Id"
onrowupdating="GridView1_RowUpdating"
onrowediting="GridView1_RowEditing">
<Columns>
<asp:CommandField ShowEditButton="True" />
<asp:TemplateField HeaderText="IsPaid" SortExpression="status">
<EditItemTemplate>
<asp:CheckBox ID="chkIsPaid" runat="server" />
</EditItemTemplate>
<ItemTemplate>
<asp:Label id="Label1" Runat="server" Text='No'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
CodeBehind:
public partial class Default3 : System.Web.UI.Page
{
private DataSet dsEmpList = new DataSet();
protected void Page_Load(object sender, EventArgs e)
{
BindGridView();
}
protected void BindGridView()
{
dsEmpList = GetEmpList();
GridView1.DataSource = dsEmpList;
GridView1.DataBind();
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
CheckBox box = (CheckBox)GridView1.Rows[e.RowIndex].FindControl("chkIsPaid");
if ((box != null) && box.Checked)
{
//do whatever
}
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex; // turn to edit mode
BindGridView(); // Rebind GridView to show the data in edit mode
}
}
Jquery Dialog Interferes With Input Checkbox Checked Property - Always False
Jan 15, 2010I came across the following given a asp.net page containing
<div id='test'>
<input type='checkbox' id='ch1' name='ch1' runat=server />
<input type="button" id="view_test" />
</div>
and the following jquery code to show this div in a dialog
$("#view_test").click(function() {
$("#test").dialog({ show: 'slide', width: 600, title: 'View Check' });
});
If view_test button was clicked, initializing the dialog, before the form post backs the checkbox ch1.Checked property in .Net is always False. However if you just postback without initializing the dialog it works as expected.
Data Controls :: Checkbox In GridView Always Returning Checked False In Code Behind
Nov 6, 2013I'm having trouble getting selected rows in asp.net. i tried to debug it and found out that the answer to "chkRow.Checked" is always false eventhough it is selected. I'm new to asp.net.here is my code.
Protected Sub btnApproveYes_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnApproveYes.Click
Dim modID As String = String.Empty
For Each row As GridViewRow In gvModule.Rows
[Code]......
Data Controls :: CheckBox Inside GridView Has Value False Even If Checked On Button Click
Dec 8, 2012<asp:GridView ID="GridView1" runat="server" >
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="myCheckBox1" runat="server"/>
[Code] .....
always returns a false value even though if it is checked
Dim myCheckBox As CheckBox = CType(row.FindControl("myCheckBox1"), CheckBox)
If myCheckBox.Checked = True Then
End if
C# - How To Check The Status (True/False) In A Grid View On Rowdatabound Event
Feb 17, 2011I have a table with three columns (ProdID,ProdName,Status). I m fetching that into a dataSet and binding that to my gridview. I have a very basic and simple rowdatabound event like this :
[code]....
how can i compare my status against True or False in my if condition.
Forms Data Controls :: How To Check If A Row Is True Or False In A Databound Item
Mar 4, 2010how do i check if a bit value is true or false and if false, then write another value.
Here is my code
<%# DataBinder.Eval(Container.DataItem, "gp_referral").Equals("False")?"":"xxx"%>
Am trying to check if gp_referral is false, and if so then write xxx, but in my code, whether true or false it evaluates to xxx
Data Controls :: CheckBox Inside GridView Always Checked False When Accessed On Button Click
Mar 10, 2014There is a Gridview in my web page with select button as below:
<div class="test01" style="height:200px;overflow-y:scroll;overflow-x:hidden" align="center">
<asp:GridView Width="100%" ID="GAsset" runat="server" AutoGenerateColumns="False" DataKeyNames="AssetId">
<Columns>
<asp:BoundField DataField="AssetId" HeaderText="AssetId"/>
<asp:BoundField DataField="AssetName" HeaderText="Asset Name"/>
[Code] ....
When I am selecting any row of Gridview using checkbox and clicking on "Select" button, It is showing ch.checked= false
code is below:
protected void btnSelect_Click(object sender, EventArgs e) {
foreach (GridViewRow row in GAsset.Rows) {
CheckBox ch = (CheckBox)row.FindControl("chkSelect");
if (ch.Checked && ch != null) {
string key = Convert.ToString(GAsset.DataKeys[row.RowIndex].Value);
[Code]....
I also tried debugging my code using break points but it is showing ch.Checked = false everytime, dont know why.
Web Forms :: How To Set A Selected Dynamic Menu Item To False
Feb 10, 2011Does anyone know how to set a selected asp.net dynamic menu item to false? I have multiple menus and when someone selects an item from one of the dropdown menus it changes color. If I were to select an item from a different menu I need the other menus not to have the selected option anymore.
View 1 RepliesRetrieve Selected Row Cell Value If Visible Property Is False In Gridview?
Jan 6, 2011how to retrieve the selected row cell value if it is visible property is false in gridview?
View 1 RepliesJQuery :: How To Compare To Checkbox List And Show Selected In First Checkbox List
Nov 25, 2010how to compare to checkbox list and show selected in first checkbox list
[Code]....
How To Check If Selected Value Of The ListBox Is Not Selected In C#
Jun 14, 2010This code will display the selected value from the listbox. E.g. if I sellect Item 1 I will get the following output: You have selected Item 1.
Label1.Text = "You have selected " + DropDownList1.SelectedValue + "<br />";
But if I don't select anything and click on Submit button, I will get: You have selected
What would I need to make it display "You have not selected anything. select at least 1 item."
UPDATE: I am using ASP.NET WebForms.
Web Forms :: Dynamically Populated Listbox Always Return Selected Items As False?
Mar 10, 2011I have the following code which simply gets data from a table and populates the questions_lb listbox with items. I have a button on the page, which when clicked, should write (on submit) the selected state of each of the items. The code below writes the text values of each of the items fine however it always writes the li.Selected as False even though i have selected items from the list. Note that you can select Multiple items from the list. Does anyone have a clue why its not writing 'True' for an item that is selected on submit?
[Code]....
How To Programatically Check A CheckBox In Code Behind
Jan 25, 2011I have on my page.aspx CheckBox with IDs representing the month.
Code:
<asp:CheckBox ID="January" runat="server" Text="Janvier" />
<asp:CheckBox ID="Febuary" runat="server" Text="Fevrier" />
<asp:CheckBox ID="March" runat="server" Text="Mars" />
<asp:CheckBox ID="October" runat="server" Text="Octobre" />
<asp:CheckBox ID="November" runat="server" Text="Novembre" />
<asp:CheckBox ID="December" runat="server" Text="Decembre" />
The ChecBox will be selected according to the user needs: 1, 2, 3 or more... When the page is fired, I wanted to get in the code behind the box which are checked so I can build a query consequently. So in the code behin, i have this:
[Code]....
JavaScript - How To Allow To Check Only One Checkbox Out Of Four In UserControl
Nov 24, 2010I have created a User Control with 4 check boxes(server control).I want to allow to check only one checkbox out of four.
The user control is loaded on page dynamically.I page may have multiple same UserConrol.
How do I do it using Jquey or Javascript?
Maintain Check On Checkbox In Datalist?
Feb 2, 2011maintaining the value on the checkbox inside the datalist control while going to another page..here the scenario on the first page the user will select or check the checkbox on whatever item he would check then click the next button to view other page to select another item now on the second page i have a back button, so when user click the back button the checkbox that he check on the first page should be retain meaning he still see what item he check on page.
View 7 Replies